研究了T6热处理(固溶处理+时效)对复式连通双连续相SiC/A1复合材料的组织和压缩性能的影响.结果表明,经T6热处理后,复合材料基体中第二相共晶硅从粗大的针状变成了细小的粒状,增强了弥散强化效果,时效析出相Mg2Si强化了基体;界面附近的基体中残余应力增大,使复合材料的压缩强度显著提高,材料的弹性模量和塑性稍稍降低.随着固溶时间的延长,复合材料的压缩强度先升高后降低.其影响机制是,随着固溶时间的延长共晶硅扩散充分,球化完全,继而粗化长大,从而提高了弥散强化效果.随着时效时间的延长,材料中的残余应力减小,位错密度降低,时效强化相Mg2Si的强化能力减弱,使复合材料的压缩强度降低.
参考文献
| [1] | I.A.Ibrahim,F.A.Mohamed,E.J.Lavernia,Particulate reinforced metal matrix composites-a review,Journal of Material Science,26,1137(1991) |
| [2] | D.J.Lloyd,Particle reinforced aluminum and magnesium matrix composites,International Materials Reviews,39,1(1994) |
| [3] | T.C.Tszeng,The effects of particle clustering on the mechanical behavior of particle reinforced composites,Composites Part B,29B,299(1998) |
| [4] | Z.Gnjidic,D.Bozic,M.Mitkov,The influence of SiC particles on the compressive properties of metal matrix composites,Materials Characterization,47,129(2001) |
| [5] | H.N.Yoshimura,M.Goncalves,H.Goldenstein,The effects of SiCp clusters and porosity on the mechanical properties of PM Al matrix composites,Key Engineering Materials,127～131,985(1997) |
| [6] | C.W.Chen,S.L.Lee,J.C.Lin,M.T.Jahn,Effects of Sip size and volume fraction on properties of A1/Sip composires,Materials Letters,52,34(2002) |
| [7] | D.R.Clarke,Interpenetrating phase composites,Journal of American Ceramic Society,75,739(1992) |
| [8] | C.Kawal,J.J.Park,Mechanical and thermal properties of Al-Si3N4 composites fabricated by the infiltration of molten Al into a porous Si3N4 ceramic with network,J.Mater.Sci.Lett.,20,385(2001) |
| [9] | W.Zhou,W.B.Hu,D.Zhang,Study on the making of metal-matrix interpenetrating phase composites,Scripta Materialia,39,1743(1998) |
| [10] | D.K.Balch,T.J.Fitzgerald,V.J.Michaud,A.Mortensen,Y.-L.Shen,S.Suresh,Thermal expansion of metals reinforced with ceramic particle and microcellular foams,Metall.& Meter.Trans.,27A,3700(1996) |
| [11] | H.X.Peng,Z.Fan,J.R.G.Evans,Bi-continuons metal matrix composites,Materials and Englneering,A303,37(2001) |
| [12] | K.Tanihata,K.Suganuma,Fabrication of ceramics-metal composite by pressure infiltration of metal to porous ceramics,Key Engineering Materials,161～163,259(1999) |
| [13] | ZHAO Longzhi,CAO Xiaoming,TIAN Chong,HU Wanping,ZHANG Jinsong,Effect ofsurface treatment of foam perform on the properties of SiC/Al composites,Journal of Chinese Materials Research,19,512(2005)(赵龙志,曹小明,田冲,胡宛平,张劲松,SiC网络骨架表面改性对SiC/Al双连续相复合材料性能的影响,材料研究学报,19,512(2005)) |
| [14] | ZHAO Longzhi,CAO Xiaoming,TIAN Chong,HU Wanping,ZHANG Jinsong,New-model double-interpenetrating SiC/390Al composite,Journal of Chinese Materials Research,19,485(2005)(赵龙志,曹小明,田冲,胡宛平,张劲松,新型复式连通SiC/390Al复合材料的研究,材料研究学报,19,485(2005)) |
| [15] | ZHAO Longzhi,FANG Zhigang,CAO Xiaoming,TIAN Chong,HU Wanping,ZHANG Jinsong,Effect of preform structure on SiC/Al co-continuous composites,Journal of Chinese Nonferrous Metal Society,16,945(2006)(赵龙志,方志刚,曹小明,田冲,胡宛平,张劲松,筋的结构对SiC/Al双连续相复合材料的性能的影响,中国有色金属学报,16,945(2006)) |
| [16] | G.Ceeh,J.B(a)r,H.J.Gudladt,J.Lendvai,Indentation creep in a short fibre-reinforced metal matrix composites,Materials Science and EngineeringA,272,145(1999) |
| [17] | I.Dutta,S.M.Allen,J.L.Haftey,Efleet of reinforcement on the aging response of cast 6061 Al-Al2O3 particulate composites,Metallurgical Transactions A,22,2553(1991) |
| [18] | R.J.Arsenault.M.Taya,Thermal residual stress in metal matrix composite,Acta Metall.,35,651(1987) |
| [19] | H.Heinrich,A.Vananti,G.Kestorz,Strain fields at interfaces of Al-based metal matrix composites,Materials Science and Engineering,A319-321,434(2001) |
| [20] | P.Agrawal,K.Conlon,K.J.Bowman,C.T.Sun,F.R.Cichocki,Thermal residual stresses in co-continuous composites,Acta Mater.,51,1143(2003) |
| [21] | G.S.Daehn,B.Starck,L.Xu,K.F.Elfishawy,J.Pdngnalda,H.L.Fraser,Elastic and plastic behavior of a cocontinuous aiumina/aluminum composite,Acta Mater.,44,249(1996) |
| [22] | S.Skirl,M.Hoffman,K.Bowman,S.Wiederhorn,J.RS(o)del,Thermal expansion behavior and macrostrain of Al2O3/Al composites with interpenetrating networks,Acta Mater.,46,2493(1998) |
| [23] | M.Hoffman,S.Skirl,W.Pompe,J.R(o)del,Thermal residual strain and stresses in Al2O3/Al composites with interpenetrating networks,Acta.Mater.,47,565(1999) |
| [24] | M.Gupta,Effect of precipitation on the bulk hardness and the ultimate tensile strength of a 6061/SiC composite,High Temperature Materials and Processes,17,237(1998) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%